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SSC CHSL 2023 PYQ — Question 59

SSC CHSL - 09 Aug 2023 - Shift 3 • Quantitative Aptitude • Q59

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Simplify the following:

7(cot 11° cot 13º cot 19° cot 29° cot 61° cot 71° cot 77° cot 79°)

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Correct answer: A

Explanation

The correct answer is option 1 i.e. 7.

Given, 7(cot 11° cot 13º cot 19° cot 29° cot 61° cot 71° cot 77° cot 79°)

⇒ 7(cot 11° cot 13º cot 19° cot 29° tan 29° tan 19° tan 13° tan 11°) = 7